The first one looks like it might be a young hi fin platy that's just starting to develop the hi fin trait. Can't guess on the color from your photo. Is it yellow on the body then changing into red on the tail? Maybe like THIS but in a hi fin variety like THIS ONE?
Thanks bear for all your help. I think the first one is the strawberry platy, I'm not sure if the high fin will appear or not. And the second is the plumetail platy that you referred to. Thanks again for your help, I appreciate it.
Actually the first one was a Variatus....it may well be a Strawberry Variatus, but it's still a Variatus. I've owned a few, neat guys. Sorry you lost it